1 /* Based loosely on scaling-test */
2
3 #include <stdlib.h>
4 #include <stdio.h>
5 #include "utils.h"
6
7 #define MAX_SRC_WIDTH 48
8 #define MAX_SRC_HEIGHT 48
9 #define MAX_DST_WIDTH 48
10 #define MAX_DST_HEIGHT 48
11 #define MAX_STRIDE 4
12
13 static pixman_format_code_t formats[] =
14 {
15 PIXMAN_a8r8g8b8, PIXMAN_a8, PIXMAN_r5g6b5, PIXMAN_a1, PIXMAN_a4
16 };
17
18 static pixman_format_code_t mask_formats[] =
19 {
20 PIXMAN_a1, PIXMAN_a4, PIXMAN_a8,
21 };
22
23 static pixman_op_t operators[] =
24 {
25 PIXMAN_OP_OVER, PIXMAN_OP_ADD, PIXMAN_OP_SRC, PIXMAN_OP_IN
26 };
27
28 #define RANDOM_ELT(array) \
29 ((array)[prng_rand_n(ARRAY_LENGTH((array)))])
30
31 static void
destroy_bits(pixman_image_t * image,void * data)32 destroy_bits (pixman_image_t *image, void *data)
33 {
34 fence_free (data);
35 }
36
37 static pixman_fixed_t
random_fixed(int n)38 random_fixed (int n)
39 {
40 return prng_rand_n (n << 16);
41 }
42
43 /*
44 * Composite operation with pseudorandom images
45 */
46 uint32_t
test_composite(int testnum,int verbose)47 test_composite (int testnum,
48 int verbose)
49 {
50 int i;
51 pixman_image_t * src_img;
52 pixman_image_t * dst_img;
53 pixman_region16_t clip;
54 int dst_width, dst_height;
55 int dst_stride;
56 int dst_x, dst_y;
57 int dst_bpp;
58 pixman_op_t op;
59 uint32_t * dst_bits;
60 uint32_t crc32;
61 pixman_format_code_t mask_format, dst_format;
62 pixman_trapezoid_t *traps;
63 int src_x, src_y;
64 int n_traps;
65
66 static pixman_color_t colors[] =
67 {
68 { 0xffff, 0xffff, 0xffff, 0xffff },
69 { 0x0000, 0x0000, 0x0000, 0x0000 },
70 { 0xabcd, 0xabcd, 0x0000, 0xabcd },
71 { 0x0000, 0x0000, 0x0000, 0xffff },
72 { 0x0101, 0x0101, 0x0101, 0x0101 },
73 { 0x7777, 0x6666, 0x5555, 0x9999 },
74 };
75
76 FLOAT_REGS_CORRUPTION_DETECTOR_START ();
77
78 prng_srand (testnum);
79
80 op = RANDOM_ELT (operators);
81 mask_format = RANDOM_ELT (mask_formats);
82
83 /* Create source image */
84
85 if (prng_rand_n (4) == 0)
86 {
87 src_img = pixman_image_create_solid_fill (
88 &(colors[prng_rand_n (ARRAY_LENGTH (colors))]));
89
90 src_x = 10;
91 src_y = 234;
92 }
93 else
94 {
95 pixman_format_code_t src_format = RANDOM_ELT(formats);
96 int src_bpp = (PIXMAN_FORMAT_BPP (src_format) + 7) / 8;
97 int src_width = prng_rand_n (MAX_SRC_WIDTH) + 1;
98 int src_height = prng_rand_n (MAX_SRC_HEIGHT) + 1;
99 int src_stride = src_width * src_bpp + prng_rand_n (MAX_STRIDE) * src_bpp;
100 uint32_t *bits;
101
102 src_x = -(src_width / 4) + prng_rand_n (src_width * 3 / 2);
103 src_y = -(src_height / 4) + prng_rand_n (src_height * 3 / 2);
104
105 src_stride = (src_stride + 3) & ~3;
106
107 bits = (uint32_t *)make_random_bytes (src_stride * src_height);
108
109 src_img = pixman_image_create_bits (
110 src_format, src_width, src_height, bits, src_stride);
111
112 pixman_image_set_destroy_function (src_img, destroy_bits, bits);
113
114 if (prng_rand_n (8) == 0)
115 {
116 pixman_box16_t clip_boxes[2];
117 int n = prng_rand_n (2) + 1;
118
119 for (i = 0; i < n; i++)
120 {
121 clip_boxes[i].x1 = prng_rand_n (src_width);
122 clip_boxes[i].y1 = prng_rand_n (src_height);
123 clip_boxes[i].x2 =
124 clip_boxes[i].x1 + prng_rand_n (src_width - clip_boxes[i].x1);
125 clip_boxes[i].y2 =
126 clip_boxes[i].y1 + prng_rand_n (src_height - clip_boxes[i].y1);
127
128 if (verbose)
129 {
130 printf ("source clip box: [%d,%d-%d,%d]\n",
131 clip_boxes[i].x1, clip_boxes[i].y1,
132 clip_boxes[i].x2, clip_boxes[i].y2);
133 }
134 }
135
136 pixman_region_init_rects (&clip, clip_boxes, n);
137 pixman_image_set_clip_region (src_img, &clip);
138 pixman_image_set_source_clipping (src_img, 1);
139 pixman_region_fini (&clip);
140 }
141
142 image_endian_swap (src_img);
143 }
144
145 /* Create destination image */
146 {
147 dst_format = RANDOM_ELT(formats);
148 dst_bpp = (PIXMAN_FORMAT_BPP (dst_format) + 7) / 8;
149 dst_width = prng_rand_n (MAX_DST_WIDTH) + 1;
150 dst_height = prng_rand_n (MAX_DST_HEIGHT) + 1;
151 dst_stride = dst_width * dst_bpp + prng_rand_n (MAX_STRIDE) * dst_bpp;
152 dst_stride = (dst_stride + 3) & ~3;
153
154 dst_bits = (uint32_t *)make_random_bytes (dst_stride * dst_height);
155
156 dst_x = -(dst_width / 4) + prng_rand_n (dst_width * 3 / 2);
157 dst_y = -(dst_height / 4) + prng_rand_n (dst_height * 3 / 2);
158
159 dst_img = pixman_image_create_bits (
160 dst_format, dst_width, dst_height, dst_bits, dst_stride);
161
162 image_endian_swap (dst_img);
163 }
164
165 /* Create traps */
166 {
167 int i;
168
169 n_traps = prng_rand_n (25);
170 traps = fence_malloc (n_traps * sizeof (pixman_trapezoid_t));
171
172 for (i = 0; i < n_traps; ++i)
173 {
174 pixman_trapezoid_t *t = &(traps[i]);
175
176 t->top = random_fixed (MAX_DST_HEIGHT) - MAX_DST_HEIGHT / 2;
177 t->bottom = t->top + random_fixed (MAX_DST_HEIGHT);
178 t->left.p1.x = random_fixed (MAX_DST_WIDTH) - MAX_DST_WIDTH / 2;
179 t->left.p1.y = t->top - random_fixed (50);
180 t->left.p2.x = random_fixed (MAX_DST_WIDTH) - MAX_DST_WIDTH / 2;
181 t->left.p2.y = t->bottom + random_fixed (50);
182 t->right.p1.x = t->left.p1.x + random_fixed (MAX_DST_WIDTH);
183 t->right.p1.y = t->top - random_fixed (50);
184 t->right.p2.x = t->left.p2.x + random_fixed (MAX_DST_WIDTH);
185 t->right.p2.y = t->bottom - random_fixed (50);
186 }
187 }
188
189 if (prng_rand_n (8) == 0)
190 {
191 pixman_box16_t clip_boxes[2];
192 int n = prng_rand_n (2) + 1;
193 for (i = 0; i < n; i++)
194 {
195 clip_boxes[i].x1 = prng_rand_n (dst_width);
196 clip_boxes[i].y1 = prng_rand_n (dst_height);
197 clip_boxes[i].x2 =
198 clip_boxes[i].x1 + prng_rand_n (dst_width - clip_boxes[i].x1);
199 clip_boxes[i].y2 =
200 clip_boxes[i].y1 + prng_rand_n (dst_height - clip_boxes[i].y1);
201
202 if (verbose)
203 {
204 printf ("destination clip box: [%d,%d-%d,%d]\n",
205 clip_boxes[i].x1, clip_boxes[i].y1,
206 clip_boxes[i].x2, clip_boxes[i].y2);
207 }
208 }
209 pixman_region_init_rects (&clip, clip_boxes, n);
210 pixman_image_set_clip_region (dst_img, &clip);
211 pixman_region_fini (&clip);
212 }
213
214 pixman_composite_trapezoids (op, src_img, dst_img, mask_format,
215 src_x, src_y, dst_x, dst_y, n_traps, traps);
216
217 if (dst_format == PIXMAN_x8r8g8b8)
218 {
219 /* ignore unused part */
220 for (i = 0; i < dst_stride * dst_height / 4; i++)
221 dst_bits[i] &= 0xFFFFFF;
222 }
223
224 image_endian_swap (dst_img);
225
226 if (verbose)
227 {
228 int j;
229
230 for (i = 0; i < dst_height; i++)
231 {
232 for (j = 0; j < dst_stride; j++)
233 printf ("%02X ", *((uint8_t *)dst_bits + i * dst_stride + j));
234
235 printf ("\n");
236 }
237 }
238
239 crc32 = compute_crc32 (0, dst_bits, dst_stride * dst_height);
240
241 fence_free (dst_bits);
242
243 pixman_image_unref (src_img);
244 pixman_image_unref (dst_img);
245 fence_free (traps);
246
247 FLOAT_REGS_CORRUPTION_DETECTOR_FINISH ();
248 return crc32;
249 }
250
251 int
main(int argc,const char * argv[])252 main (int argc, const char *argv[])
253 {
254 return fuzzer_test_main("composite traps", 40000, 0x749BCC57,
255 test_composite, argc, argv);
256 }
257